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a23d5117 GI |
1 | /* |
2 | * os_os2.c | |
3 | * | |
4 | * Home page of code is: http://smartmontools.sourceforge.net | |
5 | * | |
6 | * Copyright (C) 2004-8 Yuri Dario <smartmontools-support@lists.sourceforge.net> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
ee38a438 GI |
14 | * (for example COPYING); if not, write to the Free Software Foundation, |
15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
a23d5117 GI |
16 | */ |
17 | ||
18 | /* | |
19 | * | |
20 | * Thanks to Daniela Engert for providing sample code for SMART ioctl access. | |
21 | * | |
22 | */ | |
23 | ||
24 | // These are needed to define prototypes for the functions defined below | |
25 | #include <errno.h> | |
26 | #include "atacmds.h" | |
27 | #include "scsicmds.h" | |
28 | #include "utility.h" | |
29 | ||
30 | // This is to include whatever prototypes you define in os_generic.h | |
31 | #include "os_os2.h" | |
32 | ||
33 | // Needed by '-V' option (CVS versioning) of smartd/smartctl | |
ee38a438 | 34 | const char *os_XXXX_c_cvsid="$Id: os_os2.cpp 3806 2013-03-29 20:17:03Z chrfranke $" \ |
a23d5117 GI |
35 | ATACMDS_H_CVSID OS_XXXX_H_CVSID SCSICMDS_H_CVSID UTILITY_H_CVSID; |
36 | ||
37 | // global handle to device driver | |
38 | static HFILE hDevice; | |
39 | ||
40 | // Please eliminate the following block: both the two #includes and | |
41 | // the 'unsupported()' function. They are only here to warn | |
42 | // unsuspecting users that their Operating System is not supported! If | |
43 | // you wish, you can use a similar warning mechanism for any of the | |
44 | // functions in this file that you can not (or choose not to) | |
45 | // implement. | |
46 | ||
47 | #include "config.h" | |
48 | ||
49 | typedef struct _IDEREGS { | |
50 | UCHAR bFeaturesReg; | |
51 | UCHAR bSectorCountReg; | |
52 | UCHAR bSectorNumberReg; | |
53 | UCHAR bCylLowReg; | |
54 | UCHAR bCylHighReg; | |
55 | UCHAR bDriveHeadReg; | |
56 | UCHAR bCommandReg; | |
57 | UCHAR bReserved; | |
58 | } IDEREGS, *PIDEREGS, *LPIDEREGS; | |
59 | ||
60 | static void unsupported(int which){ | |
61 | static int warninggiven[4]; | |
62 | ||
63 | if (which<0 || which>3) | |
64 | return; | |
65 | ||
66 | if (!warninggiven[which]) { | |
67 | char msg; | |
a23d5117 GI |
68 | warninggiven[which]=1; |
69 | ||
70 | switch (which) { | |
71 | case 0: | |
72 | msg="generate a list of devices"; | |
73 | break; | |
74 | case 1: | |
75 | msg="interface to Marvell-based SATA controllers"; | |
76 | break; | |
77 | case 2: | |
78 | msg="interface to 3ware-based RAID controllers"; | |
79 | break; | |
80 | case 3: | |
81 | msg="interface to SCSI devices"; | |
82 | break; | |
83 | } | |
84 | pout("Under OS/2, smartmontools can not %s\n"); | |
85 | } | |
86 | return; | |
87 | } | |
88 | ||
89 | // print examples for smartctl. You should modify this function so | |
90 | // that the device paths are sensible for your OS, and to eliminate | |
91 | // unsupported commands (eg, 3ware controllers). | |
92 | void print_smartctl_examples(){ | |
93 | printf("=================================================== SMARTCTL EXAMPLES =====\n\n"); | |
94 | #ifdef HAVE_GETOPT_LONG | |
95 | printf( | |
96 | " smartctl -a /dev/hda (Prints all SMART information)\n\n" | |
97 | " smartctl --smart=on --offlineauto=on --saveauto=on /dev/hda\n" | |
98 | " (Enables SMART on first disk)\n\n" | |
99 | " smartctl -t long /dev/hda (Executes extended disk self-test)\n\n" | |
100 | " smartctl --attributes --log=selftest --quietmode=errorsonly /dev/hda\n" | |
101 | " (Prints Self-Test & Attribute errors)\n" | |
102 | " smartctl -a --device=3ware,2 /dev/sda\n" | |
103 | " (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n" | |
104 | ); | |
105 | #else | |
106 | printf( | |
107 | " smartctl -a /dev/hda (Prints all SMART information)\n" | |
108 | " smartctl -s on -o on -S on /dev/hda (Enables SMART on first disk)\n" | |
109 | " smartctl -t long /dev/hda (Executes extended disk self-test)\n" | |
110 | " smartctl -A -l selftest -q errorsonly /dev/hda\n" | |
111 | " (Prints Self-Test & Attribute errors)\n" | |
112 | " smartctl -a -d 3ware,2 /dev/sda\n" | |
113 | " (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n" | |
114 | ); | |
115 | #endif | |
116 | return; | |
117 | } | |
118 | ||
119 | static const char * skipdev(const char * s) | |
120 | { | |
121 | return (!strncmp(s, "/dev/", 5) ? s + 5 : s); | |
122 | } | |
123 | ||
124 | // tries to guess device type given the name (a path). See utility.h | |
125 | // for return values. | |
126 | int guess_device_type (const char* dev_name) { | |
127 | ||
128 | //printf( "dev_name %s\n", dev_name); | |
129 | dev_name = skipdev(dev_name); | |
130 | if (!strncmp(dev_name, "hd", 2)) | |
131 | return CONTROLLER_ATA; | |
132 | if (!strncmp(dev_name, "scsi", 4)) | |
133 | return CONTROLLER_SCSI; | |
134 | return CONTROLLER_UNKNOWN; | |
135 | } | |
136 | ||
137 | // makes a list of ATA or SCSI devices for the DEVICESCAN directive of | |
138 | // smartd. Returns number N of devices, or -1 if out of | |
139 | // memory. Allocates N+1 arrays: one of N pointers (devlist); the | |
140 | // other N arrays each contain null-terminated character strings. In | |
141 | // the case N==0, no arrays are allocated because the array of 0 | |
142 | // pointers has zero length, equivalent to calling malloc(0). | |
143 | int make_device_names (char*** devlist, const char* name) { | |
144 | unsupported(0); | |
145 | return 0; | |
146 | } | |
147 | ||
148 | // Like open(). Return non-negative integer handle, only used by the | |
149 | // functions below. type=="ATA" or "SCSI". If you need to store | |
150 | // extra information about your devices, create a private internal | |
151 | // array within this file (see os_freebsd.cpp for an example). If you | |
152 | // can not open the device (permission denied, does not exist, etc) | |
153 | // set errno as open() does and return <0. | |
154 | int deviceopen(const char *pathname, char *type){ | |
155 | ||
156 | int fd; | |
157 | APIRET rc; | |
158 | ULONG ActionTaken; | |
159 | ||
160 | //printf( "deviceopen pathname %s\n", pathname); | |
161 | rc = DosOpen ("\\DEV\\IBMS506$", &hDevice, &ActionTaken, 0, FILE_SYSTEM, | |
162 | OPEN_ACTION_OPEN_IF_EXISTS, OPEN_SHARE_DENYNONE | | |
163 | OPEN_FLAGS_NOINHERIT | OPEN_ACCESS_READONLY, NULL); | |
164 | if (rc) { | |
165 | char errmsg[256]; | |
166 | snprintf(errmsg,256,"Smartctl open driver IBMS506$ failed (%d)", rc); | |
167 | errmsg[255]='\0'; | |
168 | syserror(errmsg); | |
169 | return -1; | |
170 | } | |
171 | ||
172 | pathname = skipdev(pathname); | |
173 | fd = tolower(pathname[2]) - 'a'; | |
174 | ||
175 | return fd; | |
176 | } | |
177 | ||
178 | // Like close(). Acts only on integer handles returned by | |
179 | // deviceopen() above. | |
180 | int deviceclose(int fd){ | |
181 | ||
182 | DosClose( hDevice); | |
183 | hDevice = NULL; | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
188 | static void print_ide_regs(const IDEREGS * r, int out) | |
189 | { | |
190 | pout("%s=0x%02x,%s=0x%02x, SC=0x%02x, NS=0x%02x, CL=0x%02x, CH=0x%02x, SEL=0x%02x\n", | |
191 | (out?"STS":"CMD"), r->bCommandReg, (out?"ERR":" FR"), r->bFeaturesReg, | |
192 | r->bSectorCountReg, r->bSectorNumberReg, r->bCylLowReg, r->bCylHighReg, r->bDriveHeadReg); | |
193 | } | |
194 | ||
195 | // | |
196 | // OS/2 direct ioctl interface to IBMS506$ | |
197 | // | |
198 | int dani_ioctl( int device, int request, void* arg) | |
199 | { | |
200 | unsigned char* buff = (unsigned char*) arg; | |
201 | APIRET rc; | |
202 | DSKSP_CommandParameters Parms; | |
203 | ULONG PLen = 1; | |
204 | ULONG DLen = 512; //sizeof (*buf); | |
205 | UCHAR temp; | |
206 | ULONG value = 0; | |
207 | IDEREGS regs; | |
208 | ||
209 | //printf( "device %d, request 0x%x, arg[0] 0x%x, arg[2] 0x%x\n", device, request, buff[0], buff[2]); | |
210 | ||
211 | Parms.byPhysicalUnit = device; | |
212 | switch( buff[0]) { | |
213 | case WIN_IDENTIFY: | |
214 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_GENERIC, DSKSP_GET_INQUIRY_DATA, | |
215 | (PVOID)&Parms, PLen, &PLen, (PVOID)arg+4, DLen, &DLen); | |
216 | if (rc != 0) | |
217 | { | |
218 | printf ("DANIS506 ATA GET HD Failed (%d,0x%x)\n", rc, rc); | |
219 | return -1; | |
220 | } | |
221 | break; | |
222 | case WIN_SMART: | |
223 | switch( buff[2]) { | |
224 | case SMART_STATUS: | |
225 | DLen = sizeof(value); | |
226 | // OS/2 already checks CL/CH in IBM1S506 code!! see s506rte.c (ddk) | |
227 | // value: -1=not supported, 0=ok, 1=failing | |
228 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_GETSTATUS, | |
229 | (PVOID)&Parms, PLen, &PLen, (PVOID)&value, DLen, &DLen); | |
230 | if (rc) | |
231 | { | |
232 | printf ("DANIS506 ATA GET SMART_STATUS failed (%d,0x%x)\n", rc, rc); | |
233 | return -1; | |
234 | } | |
235 | buff[4] = (unsigned char)value; | |
236 | break; | |
237 | case SMART_READ_VALUES: | |
238 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_GET_ATTRIBUTES, | |
239 | (PVOID)&Parms, PLen, &PLen, (PVOID)arg+4, DLen, &DLen); | |
240 | if (rc) | |
241 | { | |
242 | printf ("DANIS506 ATA GET DSKSP_SMART_GET_ATTRIBUTES failed (%d,0x%x)\n", rc, rc); | |
243 | return -1; | |
244 | } | |
245 | break; | |
246 | case SMART_READ_THRESHOLDS: | |
247 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_GET_THRESHOLDS, | |
248 | (PVOID)&Parms, PLen, &PLen, (PVOID)arg+4, DLen, &DLen); | |
249 | if (rc) | |
250 | { | |
251 | printf ("DANIS506 ATA GET DSKSP_SMART_GET_THRESHOLDS failed (%d,0x%x)\n", rc, rc); | |
252 | return -1; | |
253 | } | |
254 | break; | |
255 | case SMART_READ_LOG_SECTOR: | |
256 | buff[4] = buff[1]; // copy select field | |
257 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_READ_LOG, | |
258 | (PVOID)&Parms, PLen, &PLen, (PVOID)arg+4, DLen, &DLen); | |
259 | if (rc) | |
260 | { | |
261 | printf ("DANIS506 ATA GET DSKSP_SMART_READ_LOG failed (%d,0x%x)\n", rc, rc); | |
262 | return -1; | |
263 | } | |
264 | break; | |
265 | case SMART_ENABLE: | |
266 | buff[0] = 1; // enable | |
267 | DLen = 1; | |
268 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_ONOFF, | |
269 | (PVOID)&Parms, PLen, &PLen, (PVOID)buff, DLen, &DLen); | |
270 | if (rc) { | |
271 | printf ("DANIS506 ATA GET DSKSP_SMART_ONOFF failed (%d,0x%x)\n", rc, rc); | |
272 | return -1; | |
273 | } | |
274 | break; | |
275 | case SMART_DISABLE: | |
276 | buff[0] = 0; // disable | |
277 | DLen = 1; | |
278 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_ONOFF, | |
279 | (PVOID)&Parms, PLen, &PLen, (PVOID)buff, DLen, &DLen); | |
280 | if (rc) { | |
281 | printf ("DANIS506 ATA GET DSKSP_SMART_ONOFF failed (%d,0x%x)\n", rc, rc); | |
282 | return -1; | |
283 | } | |
284 | break; | |
285 | #if 0 | |
286 | case SMART_AUTO_OFFLINE: | |
287 | buff[0] = buff[3]; // select field | |
288 | DLen = 1; | |
289 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_AUTO_OFFLINE, | |
290 | (PVOID)&Parms, PLen, &PLen, (PVOID)buff, DLen, &DLen); | |
291 | if (rc) { | |
292 | printf ("DANIS506 ATA GET DSKSP_SMART_ONOFF failed (%d,0x%x)\n", rc, rc); | |
293 | return -1; | |
294 | } | |
295 | break; | |
296 | #endif | |
297 | case SMART_AUTOSAVE: | |
298 | buff[0] = buff[3]; // select field | |
299 | DLen = 1; | |
300 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_AUTOSAVE_ONOFF, | |
301 | (PVOID)&Parms, PLen, &PLen, (PVOID)buff, DLen, &DLen); | |
302 | if (rc) { | |
303 | printf ("DANIS506 ATA DSKSP_SMART_AUTOSAVE_ONOFF failed (%d,0x%x)\n", rc, rc); | |
304 | return -1; | |
305 | } | |
306 | break; | |
307 | case SMART_IMMEDIATE_OFFLINE: | |
308 | buff[0] = buff[1]; // select field | |
309 | DLen = 1; | |
310 | rc = DosDevIOCtl (hDevice, DSKSP_CAT_SMART, DSKSP_SMART_EOLI, | |
311 | (PVOID)&Parms, PLen, &PLen, (PVOID)buff, DLen, &DLen); | |
312 | if (rc) { | |
313 | printf ("DANIS506 ATA GET DSKSP_SMART_EXEC_OFFLINE failed (%d,0x%x)\n", rc, rc); | |
314 | return -1; | |
315 | } | |
316 | break; | |
317 | ||
318 | default: | |
319 | fprintf( stderr, "device %d, request 0x%x, arg[0] 0x%x, arg[2] 0x%x\n", device, request, buff[0], buff[2]); | |
320 | fprintf( stderr, "unknown ioctl\n"); | |
321 | return -1; | |
322 | break; | |
323 | } | |
324 | break; | |
325 | //case WIN_PIDENTIFY: | |
326 | // break; | |
327 | default: | |
328 | fprintf( stderr, "unknown ioctl\n"); | |
329 | return -1; | |
330 | break; | |
331 | } | |
332 | ||
333 | // ok | |
334 | return 0; | |
335 | } | |
336 | ||
337 | // Interface to ATA devices. See os_linux.cpp for the cannonical example. | |
338 | // DETAILED DESCRIPTION OF ARGUMENTS | |
339 | // device: is the integer handle provided by deviceopen() | |
340 | // command: defines the different operations, see atacmds.h | |
341 | // select: additional input data IF NEEDED (which log, which type of | |
342 | // self-test). | |
343 | // data: location to write output data, IF NEEDED (1 or 512 bytes). | |
344 | // Note: not all commands use all arguments. | |
345 | // RETURN VALUES (for all commands BUT command==STATUS_CHECK) | |
346 | // -1 if the command failed | |
347 | // 0 if the command succeeded, | |
348 | // RETURN VALUES if command==STATUS_CHECK | |
349 | // -1 if the command failed OR the disk SMART status can't be determined | |
350 | // 0 if the command succeeded and disk SMART status is "OK" | |
351 | // 1 if the command succeeded and disk SMART status is "FAILING" | |
352 | ||
353 | // huge value of buffer size needed because HDIO_DRIVE_CMD assumes | |
354 | // that buff[3] is the data size. Since the ATA_SMART_AUTOSAVE and | |
355 | // ATA_SMART_AUTO_OFFLINE use values of 0xf1 and 0xf8 we need the space. | |
356 | // Otherwise a 4+512 byte buffer would be enough. | |
357 | #define STRANGE_BUFFER_LENGTH (4+512*0xf8) | |
358 | ||
359 | int ata_command_interface(int device, smart_command_set command, int select, char *data){ | |
360 | unsigned char buff[STRANGE_BUFFER_LENGTH]; | |
361 | // positive: bytes to write to caller. negative: bytes to READ from | |
362 | // caller. zero: non-data command | |
363 | int copydata=0; | |
364 | ||
365 | const int HDIO_DRIVE_CMD_OFFSET = 4; | |
366 | ||
367 | // See struct hd_drive_cmd_hdr in hdreg.h. Before calling ioctl() | |
368 | // buff[0]: ATA COMMAND CODE REGISTER | |
369 | // buff[1]: ATA SECTOR NUMBER REGISTER == LBA LOW REGISTER | |
370 | // buff[2]: ATA FEATURES REGISTER | |
371 | // buff[3]: ATA SECTOR COUNT REGISTER | |
372 | ||
373 | // Note that on return: | |
374 | // buff[2] contains the ATA SECTOR COUNT REGISTER | |
375 | ||
376 | // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes) | |
377 | memset(buff, 0, STRANGE_BUFFER_LENGTH); | |
378 | ||
379 | //printf( "command, select %d,%d\n", command, select); | |
380 | buff[0]=ATA_SMART_CMD; | |
381 | switch (command){ | |
382 | case CHECK_POWER_MODE: | |
383 | buff[0]=ATA_CHECK_POWER_MODE; | |
384 | copydata=1; | |
385 | break; | |
386 | case READ_VALUES: | |
387 | buff[2]=ATA_SMART_READ_VALUES; | |
388 | buff[3]=1; | |
389 | copydata=512; | |
390 | break; | |
391 | case READ_THRESHOLDS: | |
392 | buff[2]=ATA_SMART_READ_THRESHOLDS; | |
393 | buff[1]=buff[3]=1; | |
394 | copydata=512; | |
395 | break; | |
396 | case READ_LOG: | |
397 | buff[2]=ATA_SMART_READ_LOG_SECTOR; | |
398 | buff[1]=select; | |
399 | buff[3]=1; | |
400 | copydata=512; | |
401 | break; | |
402 | case WRITE_LOG: | |
403 | break; | |
404 | case IDENTIFY: | |
405 | buff[0]=ATA_IDENTIFY_DEVICE; | |
406 | buff[3]=1; | |
407 | copydata=512; | |
408 | break; | |
409 | case PIDENTIFY: | |
410 | buff[0]=ATA_IDENTIFY_PACKET_DEVICE; | |
411 | buff[3]=1; | |
412 | copydata=512; | |
413 | break; | |
414 | case ENABLE: | |
415 | buff[2]=ATA_SMART_ENABLE; | |
416 | buff[1]=1; | |
417 | break; | |
418 | case DISABLE: | |
419 | buff[2]=ATA_SMART_DISABLE; | |
420 | buff[1]=1; | |
421 | break; | |
422 | case STATUS: | |
423 | case STATUS_CHECK: | |
424 | // this command only says if SMART is working. It could be | |
425 | // replaced with STATUS_CHECK below. | |
426 | buff[2]=ATA_SMART_STATUS; | |
427 | buff[4]=0; | |
428 | break; | |
429 | case AUTO_OFFLINE: | |
430 | buff[2]=ATA_SMART_AUTO_OFFLINE; | |
431 | buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! | |
432 | break; | |
433 | case AUTOSAVE: | |
434 | buff[2]=ATA_SMART_AUTOSAVE; | |
435 | buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! | |
436 | break; | |
437 | case IMMEDIATE_OFFLINE: | |
438 | buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; | |
439 | buff[1]=select; | |
440 | break; | |
441 | //case STATUS_CHECK: | |
442 | // // This command uses HDIO_DRIVE_TASK and has different syntax than | |
443 | // // the other commands. | |
444 | // buff[1]=ATA_SMART_STATUS; | |
445 | // break; | |
446 | default: | |
447 | pout("Unrecognized command %d in linux_ata_command_interface()\n" | |
448 | "Please contact " PACKAGE_BUGREPORT "\n", command); | |
449 | errno=ENOSYS; | |
450 | return -1; | |
451 | } | |
452 | ||
453 | #if 0 | |
454 | // This command uses the HDIO_DRIVE_TASKFILE ioctl(). This is the | |
455 | // only ioctl() that can be used to WRITE data to the disk. | |
456 | if (command==WRITE_LOG) { | |
457 | unsigned char task[sizeof(ide_task_request_t)+512]; | |
458 | ide_task_request_t *reqtask=(ide_task_request_t *) task; | |
459 | task_struct_t *taskfile=(task_struct_t *) reqtask->io_ports; | |
460 | int retval; | |
461 | ||
462 | memset(task, 0, sizeof(task)); | |
463 | ||
464 | taskfile->data = 0; | |
465 | taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR; | |
466 | taskfile->sector_count = 1; | |
467 | taskfile->sector_number = select; | |
468 | taskfile->low_cylinder = 0x4f; | |
469 | taskfile->high_cylinder = 0xc2; | |
470 | taskfile->device_head = 0; | |
471 | taskfile->command = ATA_SMART_CMD; | |
472 | ||
473 | reqtask->data_phase = TASKFILE_OUT; | |
474 | reqtask->req_cmd = IDE_DRIVE_TASK_OUT; | |
475 | reqtask->out_size = 512; | |
476 | reqtask->in_size = 0; | |
477 | ||
478 | // copy user data into the task request structure | |
479 | memcpy(task+sizeof(ide_task_request_t), data, 512); | |
480 | ||
481 | if ((retval=dani_ioctl(device, HDIO_DRIVE_TASKFILE, task))) { | |
482 | if (retval==-EINVAL) | |
483 | pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n"); | |
484 | return -1; | |
485 | } | |
486 | return 0; | |
487 | } | |
488 | #endif // 0 | |
489 | ||
490 | // We are now doing the HDIO_DRIVE_CMD type ioctl. | |
491 | if ((dani_ioctl(device, HDIO_DRIVE_CMD, buff))) | |
492 | return -1; | |
493 | ||
494 | // There are two different types of ioctls(). The HDIO_DRIVE_TASK | |
495 | // one is this: | |
496 | if (command==STATUS_CHECK){ | |
497 | int retval; | |
498 | ||
499 | // Cyl low and Cyl high unchanged means "Good SMART status" | |
500 | if (buff[4]==0) | |
501 | return 0; | |
502 | ||
503 | // These values mean "Bad SMART status" | |
504 | if (buff[4]==1) | |
505 | return 1; | |
506 | ||
507 | // We haven't gotten output that makes sense; print out some debugging info | |
508 | syserror("Error SMART Status command failed"); | |
509 | pout("Please get assistance from " PACKAGE_HOMEPAGE "\n"); | |
510 | return -1; | |
511 | } | |
512 | ||
513 | // CHECK POWER MODE command returns information in the Sector Count | |
514 | // register (buff[3]). Copy to return data buffer. | |
515 | if (command==CHECK_POWER_MODE) | |
516 | buff[HDIO_DRIVE_CMD_OFFSET]=buff[2]; | |
517 | ||
518 | // if the command returns data then copy it back | |
519 | if (copydata) | |
520 | memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata); | |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
a23d5117 GI |
525 | // Interface to SCSI devices. See os_linux.c |
526 | int do_scsi_cmnd_io(int fd, struct scsi_cmnd_io * iop, int report) { | |
527 | unsupported(3); | |
528 | return -ENOSYS; | |
529 | } |